Our company handles SG-WIND as a gas venting insert component for moulding dies.
The use of SG-WIND has been well-received for improving gas burns and reducing the number of times die maintenance is required.
This time, an experiment was conducted to visualise the air venting performance of SG-WIND.
As an outline of the experiment, a fixing jig was created on the assumption that it was built into the mould, and factory air (up to 0.5 MPa) was connected from the same direction as the slit.
Experimental overview (illustration).
Jig for fixing the SG-WIND
To further visualise the air escaping from the SG-WIND, the entire nest was placed in a tank of water.
Air removal experiment (0.1 MPa)
The video shows air pressure at 0.1 MPa, but it was possible to confirm that air was passing smoothly.
This is possible because the SG-WIND slit grooves are uniform and straight.
In normal injection moulding, the resin pressure is 20 MPa or higher, so there are no problems with outgassing performance. This is the result of an experiment using a simple fixture, but in the future we would like to be able to visualise the performance when incorporated into an actual nesting device.
▶How to use SG-WIND
▶Examples of application to mass production moulds
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